Epi Lesson

Survival analyses model the time it takes before an event (outcome of interest) occurs. This time until event occurrence can be influenced and adjusted for one or more covariates. These covariates are either “static” i.e. they stay the same for the entire time period (for e.g. eye colour, or other covariate measured only once), or can be “time-dependent” and vary during the observation period until event/outcome occurrence (for e.g. taking a medication vs. not)…this implies the value is measured more than once.By: Dr. Christian Vaillancourt

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